KB# - KB000809


Backup fails and Acronis log contains "invalid file reference" error.

<event id="18" level="4" module="1" code="502" time="1313473175" message="Operation with partition '0-0' was terminated. Details: <indent>Invalid file reference. Error code: 0x7001A Tag: 0x89D94B01B483E1A4</indent>" line_tag="0xA164035B3FF39281" />
<event id="19" level="4" module="7" code="26" time="1313473175" message="Invalid file reference" line_tag="0x89D94B01B483E1A4" />
<event id="20" level="4" module="100" code="103" time="1313473175" message="Failed to perform the backup operation." />


This error usually results from file/disk corruption on the client computer, and requires running chkdsk /r /f  on each drive being backed up.

If the issue is unresolved: -

1) back up each partition individually to isolate the source of the problem
2) run Acronis Info tool (instructions here - http://community.kaseya.com/kb/w/wiki/how-do-i-run-the-acronis-info-report-utility.aspx) - submit the output to Kaseya support along with the log sample



To access the Acronis log for a backup taken with Kaseya Backup, go to Backup tab > backup Sets function and click the success/failed link in the "Result" column.



Kaseya Backup (all verssions)

Acronis Backup and Recovery